What is a DAO and why does it matter to AEC?

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Introduction Blockchain technology has revolutionized many industries worldwide, and the Architecture, Engineering, and Construction (AEC) industry is no exception. A significant innovation in this context is the DAO, which is a "Decentralized Autonomous Organization". A DAO is a blockchain-based organizational structure that operates decentralised, enabling transparent and collaborative decision-making and facilitating participatory governance. In this article, we'll explore what exactly a DAO is and why it's relevant and important to the AEC industry. What is a DAO? A DAO is an autonomous, organization-like entity that operates through smart contracts on a blockchain network. Unlike a traditional company, there is no hierarchical structure of power, nor the need for intermediaries such as managers or executives. Instead, decision-making is carried out collectively and transparently, through voting based on ownership of tokens or units of the DAO's native c...

Tips Before Recovering a Drawing

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Autodesk Product Support strongly recommends that you perform the following steps before recovering a corrupted drawing:

 • Make a copy or copies of your drawing on reliable storage media. For example, if you suspect that your hard disk contains bad sectors, copy your files to another network drive, USB flash drive, and external hard drives. It is best to perform recovery operations on a copy of the file, since there are several different methods of recovery and each method alters the file in a different way. 
For each recovery method, it is best to use a copy of the original file since recovery processes may alter a damaged drawing yet still not recover it enough that AutoCAD can open it. 
If you retain a copy of the original damaged file, you can then use another recovery process on the original file.

 • Identify and make backup copies of BAK files associated with the damaged drawing. If you open and save a damaged file without fully recovering it, you may overwrite a good BAK file with a corrupted BAK file.

 • Note that there is a mechanism in AutoCAD that prevents a good BAK file from being over-written by a corrupted BAK file. When AutoCAD saves a drawing, it also checks the file for corruption. If the file is corrupted, AutoCAD does not overwrite the existing BAK file. Instead, it creates backup files that have the file extension(s). bk1, .bk2, .bk3, etc. Be aware that this process is not always successful; therefore, it is a good idea to make archive copies of good BAK files if you suspect that you have corrupted file.

 • Try to identify the source of the corruption. For example, if you suspect that drawings are becoming corrupted by copying files onto a hard disk with bad sectors,you should identify and correct the problem with the hard disk before you begin to recover your files. By doing some investigation, you may find that there is more than one source that is causing the corruption or that your original assumption about what is causing the problem is incorrect.

 • Record any error messages generated by AutoCAD or the operating system. Note when the messages occur in order to find a connection between the messages and when the drawing becomes corrupted. Continue to record any errors or messages that are generated during the recovery process.

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